Airtac GAFR Adjustable Filter Regulator GAFR300C08AL
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300C08AL is a genuine two-in-one filter & regulator — a diversion-type water/particulate filter and a balanced pressure regulator built into ONE body. It has 1/4" ports, a 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size1/4"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade40 µm
- Bowl materialMetal
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight500 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFR Adjustable Filter Regulator GAFR300C08AL
The GAFR300C08AL is a filter and regulator combined into a single body, so incoming air is spun to separate water and solids before the balanced regulator sets a steady outlet pressure. This lower-pressure model regulates from 0.15 to 0.4 MPa (20-58 psi), with a 40 um element and a metal condensate bowl.
Its 1/4in port and 500 g mass place it in the GAFR300 size class, a step up from the GAFR200's 290 g body. The automatic drain clears the 60 cc bowl without manual attention, and the included circular gauge shows the set pressure on an MPa/psi scale.
Airtac GAFR Adjustable Filter Regulator GAFR300C08AL Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300C08AL |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 1/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Metal |
| Drain type | Automatic drain |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 60 cc |
| Bracket | Included |
| Weight | 500 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR300C08AL
| GAFR300 | GA300 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 08 | Port size 1/4". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
The filter and the regulator are ONE body here — there is no separate GAF filter or GAR regulator part to assemble. Need lubrication downstream too? Add a lubricator by ordering the matching GAFC300-08 F.R.L. combination instead.
Size Class & Flow Envelope
- GAFR2001/8"-1/4" · 2000 L/min
- GAFR3001/4"-1/2" · 3500 L/min
- GAFR4003/8"-1/2" · 7000 L/min
- GAFR5003/4" · 8000 L/min
- GAFR6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue at 0.7 MPa inlet pressure — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. Outlet pressure falls as flow rises, so size a body with headroom above your peak demand.
| This model | GAFR300 · 1/4" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-08 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR300C08AL Is Used
Low-pressure jig clamping
Feed a single pneumatic clamp or small fixture where a gentle, steady 0.15-0.4 MPa grip is required. The automatic drain keeps the 60 cc bowl clear during long production runs.
Bench test air supply
Provide filtered air to a laboratory or workbench setup that must not exceed 0.4 MPa. The metal bowl and included gauge make it easy to verify the set pressure at a glance.
Light assembly line
Supply a single small actuator or air tool on a light assembly line. The 500 g body mounts securely with the included bracket, and the automatic drain reduces maintenance stops.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300C08AL the Right Air-Prep Unit?
Choose the GAFR300 body when 1/4in or larger ports are needed; the GAFR200 tops out at 1/4in with a 25 cc bowl, while the GAFR400 offers 3/8in-1/2in ports and a 100 cc bowl. The metal bowl suits demanding environments, though compatibility for aggressive surroundings should be confirmed. The A code specifies an automatic drain, ideal for wet or unattended lines, and the L type limits regulation to 0.15-0.4 MPa (20-58 psi) for low-pressure applications. The bracket is included, the gauge is fitted, and the element is standard 40 um. If oil is needed downstream, order the matching GAFC300-08 combination instead. Note that 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range.
Quick checklist
- ✓ Body size for your peak flow (1/4" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Bracket kept or removed (J); add a lubricator = GAFC
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, gauge/knob accessible.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure with the pressed-in self-locking knob; pull to adjust, press to lock.
- check Drain condensate before the 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 500 g unit on its bracket, not on the tubing.
This is a filter and regulator only — it delivers filtered, pressure-set air with no added oil. If a downstream tool needs lubrication, add a separate lubricator or order the GAFC300-08 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR300C08AL FAQ
The GAFR300C08AL is a filter and regulator with a 1/4in port. Its lower-pressure type regulates from 0.15 to 0.4 MPa (20-58 psi). Maximum supply pressure is 1.0 MPa (145 psi), and proof pressure is 1.5 MPa (215 psi). Operating temperature is -5 to 70 C. It has a 60 cc drain bowl and weighs 500 g.
The A code specifies an automatic drain, which expels condensate from the 60 cc bowl without operator action. A blank drain code ships with both semi-auto and manual drains, requiring someone to periodically open the manual valve. The automatic type suits wet or unattended lines.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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